Double cross center guide and paraffin scraper



Feb. 14, 1933. w MORGAN 1,897,507 4 DOUBLE cnosrs CENTER GUIDE AND PARAFFIN SCRAPER- Filed m 20, 19:52

9......4 Feb. :14, 1933 mm! x. roman, or sum names-omens; assrenon. or oim-rouam T J UNITE STATES PATENT ornca GEORGE-L. MULLER, OF SAND SPRINGS, OKLAHOMA.

normnn onoss cnnrnaeurnn AND raaarrm' soaarm;

Application me m 20, 1932., Serial No. 812,608.

My invention relates to a pump rod center guide and parafiin scraper, particularly adapted for centering-the pump rod in the casing or tubing and for removal of parafiin from the walls of the casing.

It is well known by those skilled in the art that in most pumping oil wells, the accumulation of parafiin on the walls of the casing tends to obstruct the free flow of oil and interferes with the movement of the pumping rod. Many methods are now employed in the industr to remove the parafiin from the casing, ut have been generally objectionable in that their use required that the flow of oil be stopped; or else were too complicated or impractical for use. It is also known that pump rods become worn due to the rod rubbing against the walls of the casing.

Accordingly, it is an object of the present invention, to provide a device which will serve as a pump rod center glide and paraflin scra er, removing the para from the walls of t e casing without interrupting the flow of oil, thereby permitting the oil flow to carry ofi the arafiin as ra idly as it .is removed from t e casin wa ls.

A further object of t e invention is to provide a device of the above-mentioned character which will serve to center the pump rod in the casing or tubing, so that during the pumping operation the pump rod will not rub against the walls of the casing.

A still further object of the invention is V to provide a device of the above-mentioned character composed of interlocking sections which may be readily applied to the pump rod without the use of screws or bolts, the sections being held together by the casing or tubing in which the pump rod reciprocates.

Another object of the invention is to provide a device of the above-mentioned character which is simple and durable in construction, reliable and efiicient in operation and inexpensive to manufacture.

Other objects and advantages of the in- 'vention will be apparent during the course of the following description.

In the accompanying drawing, forming a part of this specification and in which like to the pump rod 13, by brin numerals are 'em loyed to designate like parts throughout the same, v

Fig. 1 is a side elevation viewofthe device applied to a pump rod within the tubing-longitudinally of the body and disposed at an' angle to the longitudinal axis thereof.

The body is composed of complementary sections 7 and 8, formed by splitting the body longitudinally of its center, as at 9, for onehalf its length and then horizontally, as at perspective views of the 10, the lower half of the body being split horizontally, as at 11, from theopposite side of the body to the horizontal split 10, and then longitudinally of the center of the body as at 12, the upper and lower longitudinal splits 9 and 12, being in planes at ri t an les to each other. Thus, 1t is seen i lat w en the sections 7 and 8 are assembled together around. the pump rod 13, they are locked against independent longitudinal movement by the interlocking flan es and shoulders of the sections, reduced y forming the -sections in the a orementioned manner, and are held to ether by the casing or tubing 14. in whic the pump rod reciprocates. The pump rod 13 and casing 14 are of the conventional type and when the device is mounted on a section of the pump rod it normally rests on the collar 15 formed integral with the pump rod.

In use, the device may be readily applied ing the interlocking sections 7 and 8 toget er around the ump rod and then inserting it into the'casmg 14. The device-is of such diameter as to snugly fit within the casing, thus centering and guiding the pump rod in its reciprocating movement, so it will not rub ainst the walls of the casing. When it is deinvention herewith shown and described is to be taken as a preferred example of the same and that certain changes in the shape, size and arrangement of the parts may be made without departing from the spiritof the invention or the scope of the subjloned claims.

Having thus described my invention, I claim a 1. A pump rod uide and paraffin scraper including a body having ribs formed on its outer surface, said-"body being composed of complementary sections having interfitting shoulders securing the sections together against independent longitudinal movement.

2. A pump rod guide and parafiin scraper for oil well pumps including a tubular body having ribs formed on its outer surface, said body being composed of complementary sections adapted to embrace a pump rod, said sections having longitudinal upper co-acting faces and lower co-acting faces the upper faces being disposed in a plane at right angles to the lower faces. I

3. A pump rod guide and paraffin scraper incl'udin complementary sections adapted to be loose y mounted on a pump rodin confronting relation and coo crating locking means on said sections securing them together against independent longitudinal movement.

4. A pump rod guide and paraflin scraper including interfitting sections for mounting on a pump rod, said sections being freely movable radially into and out of interfitting relation, the sections being secured together against independent longitudinal movement when in interfitting position.

5. A pump rod guide and parafiin scraper including interfitting sections for mounting on a pump rod, said sections being freely movable radially into and out of interfitting relation, and means securing the sections t0 gether against independent longitudinal movement when in interfitting position.

6. A pump rod guide and paraffin scraper I 7 including interfitting sections for mounting on a pump rod, and means integral with said sections securing them together against inde endent longitudinal movement.

. A pump rod guide and paraffin scraper.

- including a body composed of interfitting sections adapted to be loosely mounted on a pump 'rod in confronting relation, means securing said sections against independent lon itudinal movement and spiral fins exten ing longitudinally of said bod 8. A pump rod guide and para n scraper including a tubular body composed of complementary sections, said sections having longitudinal upper co-acting faces and longitudinal lower co-acting faces, the upper faces being disposed in a different plane than the lower faces.

9. A pump rod guide and paraffin scraper including a tubular body composed of complementary sections, said sections having lon-' gitudinal upper co-acting faces and longitudinal lower co-acting faces, the upper faces being disposed in a different plane than the lower faces, and cooperating means on said sections securing them together against independent longitudinal movement.

10. A pump rod guide and paraffin scraper including a tubular body having spiral fins extending longitudinally thereof, said body being divided longitudinally to provide complementary sections adapted to embrace a pump rod and means on said sections securing the sections together against independent longitudinal movement. 11. A pump rod-guide and parafiin scraper including a tubular body divided longitudinally to provide complementary sections adapted to embrace a pump rod and cooperating means on said sections securing the sections together against independent longitudinal movement.

12. A pump rod guide and paraflin scraper includinga tubular body composed of complementary sections for embracing a pump rod, said sections having longitudinal upper co-acting faces and longitudinal lower coacting faces, the upper faces being disposed in a vdifferent plane than the lower faces, and interfitting shoulders formed on ,said sections, securingthem together against independent longitudinal movement. 1

13. A pump rod guide and paraffin scraper including a tubular body divided longitudinally to provide complementarysections adapted to embrace a ump rod, said sections having interfitting s oulders securing the sections together against independent longitudinal movement.

In testimony whereof, I afiix my si nature.

WILLIAM K MOR AN. 

